// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef KUTIL_HASH_H_
#define KUTIL_HASH_H_

#include <limits>
#include <string>
#include <turbo/hash/m3.h>
#include "krpc/utility/base_export.h"
#include "krpc/utility/basictypes.h"
#include "krpc/utility/logging.h"

namespace kutil {

    // Computes a hash of a memory buffer |data| of a given |length|.
    // WARNING: This hash function should not be used for any cryptographic purpose.
    inline uint32_t Hash(const char *data, size_t length) {
        if (length > static_cast<size_t>(std::numeric_limits<int>::max())) {
            NOTREACHED();
            return 0;
        }
        return turbo::super_fast_hash(data, static_cast<int>(length));
    }

    // Computes a hash of a string |str|.
    // WARNING: This hash function should not be used for any cryptographic purpose.
    inline uint32_t Hash(const std::string &str) {
        return Hash(str.data(), str.size());
    }

}  // namespace kutil

#endif  // KUTIL_HASH_H_
